//
// Copyright (c) 2015, Microsoft Corporation
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
// IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//

#pragma once
#include <Windows.h>


//************************************************************************************************
//
//  The BridgeLog Singleton provides assistance for logging Bridge Information and errors to
//  a local log etl log file.  Logging is always in memory and is only flushed to disk on ERROR.
//
//  Use "LogInfo" for non-fatal errors, that would be helpful context for error investigations.
//
//************************************************************************************************
class BridgeLog sealed
{
public:
    static BridgeLog* Instance(void);

    void LogEnter(_In_z_ wchar_t* funcName);
    void LogLeave(_In_z_ wchar_t* funcName, int hr=0);
    void LogInfo(_In_ Platform::String^ LogMsg);
    void LogError(_In_ Platform::String^ LogMsg, _In_ Platform::Exception^ ex);
    void LogError(_In_ Platform::String^ LogMsg, int hr);

private:
    BridgeLog(void);
    Windows::Foundation::Diagnostics::LoggingSession^ m_session;
    Windows::Foundation::Diagnostics::LoggingChannel^ m_channel;

    void Shutdown(void);
    volatile long m_shutdown;
};

